Tim Stevens was born in England and grew up in Johannesburg, South Africa. He lives near London with his wife and daughters, and works as an attending physician. His debut novel is the acclaimed thriller RATCATCHER, featuring the hunter of rogue spies John Purkiss. Four further Purkiss thrillers, DELIVERING CALIBAN, JOKERMAN, TUNDRA and CRONOS RISING, are also available. Another series, with former assassin Martin Calvary, began with SEVERANCE KILL and continues with ANNIHILATION MYTHS. Tim is the author of the Joe Venn American crime thrillers OMEGA DOG, DELTA GHOST, ALPHA KILL and SIGMA CURSE, as well as the short espionage novel REUNION.